JHipster Eclipse项目在"main“中内存不足

Question

我正在建立一个基线JHipster项目，不涉及任何花哨(没有集群等等)。我正在使用标准的启用节点(当然)的命令行执行精确的教程步骤，然后将项目作为Maven项目导入Eclipse。根据项目的回顾，一切看起来都应该很好，除非我试图在服务器上运行它，或者使用mvn命令行构建它.

错误消息

INFO: Starting Servlet Engine: Apache Tomcat/7.0.12
Exception in thread "main" 
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "main"

POM/Maven

据我所知，这可能是一个POM依赖错误，但如果是的话，我正在花很长时间搞清楚哪一个。我的项目被直接配置为使用JRE1.7。我的战俘在下面。另一个想法是，它与Hipster最初的NPM安装直接相关(在POM之后)：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.0.0.RC4</version>
</parent>

<profiles>
    <profile>
        <id>dev</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <properties>
            <!-- Spring profile to use -->
            <spring.profiles.active>dev</spring.profiles.active>
            <!-- log configuration -->
            <logback.loglevel>DEBUG</logback.loglevel>
        </properties>
    </profile>
    <profile>
        <id>prod</id>
        <properties>
            <!-- Spring profile to use -->
            <spring.profiles.active>prod</spring.profiles.active>
            <!-- log configuration -->
            <logback.loglevel>INFO</logback.loglevel>
            <logback.appender>CONSOLE</logback.appender>
        </properties>
        <build>
            <plugins>
                <plugin>
                    <groupId>com.github.trecloux</groupId>
                    <artifactId>yeoman-maven-plugin</artifactId>
                    <version>0.1</version>
                    <configuration>
                        <yeomanProjectDirectory>${project.basedir}</yeomanProjectDirectory>
                    </configuration>
                    <executions>
                        <execution>
                            <id>run-grunt</id>
                            <phase>generate-resources</phase>
                            <goals>
                                <goal>build</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <artifactId>maven-clean-plugin</artifactId>
                    <version>2.5</version>
                    <configuration>
                        <filesets>
                            <fileset>
                                <directory>dist</directory>
                            </fileset>
                            <fileset>
                                <directory>.tmp</directory>
                            </fileset>
                            <fileset>
                                <directory>node_modules</directory>
                            </fileset>
                        </filesets>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        <arguments>
                            <argument>--spring.profiles.active=prod</argument>
                        </arguments>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    </profile>
</profiles>

<properties>
    <!-- Maven build properties -->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.7</java.version>

    <metrics-spring.version>3.0.0-RC4</metrics-spring.version>
    <HikariCP.version>1.3.3</HikariCP.version>
    <commons-lang.version>2.6</commons-lang.version>
    <commons-io.version>2.4</commons-io.version>
    <javax.inject.version>1</javax.inject.version>
    <joda-time-hibernate.version>1.3</joda-time-hibernate.version>
    <geronimo-javamail_1.4_mail.version>1.8.3</geronimo-javamail_1.4_mail.version>
    <usertype.core.version>3.1.0.CR10</usertype.core.version>
    <springloaded.version>1.2.0.BUILD-20140214.165636-1</springloaded.version>
    <awaitility.version>1.4.0</awaitility.version>
    <json-path.version>0.9.1</json-path.version>
    <assertj-core.version>1.5.0</assertj-core.version>
    <maven-enforcer-plugin.version>1.3.1</maven-enforcer-plugin.version>
    <sonar-maven-plugin.version>2.2</sonar-maven-plugin.version>

    <postgresql.version>9.3-1100-jdbc41</postgresql.version>
</properties>

<repositories>
    <repository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>http://repo.spring.io/milestone</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>http://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>org.jboss.repository.releases</id>
        <name>JBoss Maven Release Repository</name>
        <url>https://repository.jboss.org/nexus/content/repositories/releases</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>spring-snapshots</id>
        <url>http://repo.spring.io/libs-snapshot</url>
        <snapshots><enabled>true</enabled></snapshots>
    </pluginRepository>
    <pluginRepository>
        <id>spring-milestones</id>
        <url>http://repo.spring.io/milestone</url>
        <snapshots><enabled>true</enabled></snapshots>
    </pluginRepository>
</pluginRepositories>

<prerequisites>
    <maven>3.0.0</maven>
</prerequisites>

<dependencies>
    <dependency>
        <groupId>com.codahale.metrics</groupId>
        <artifactId>metrics-core</artifactId>
    </dependency>
    <dependency>
        <groupId>com.codahale.metrics</groupId>
        <artifactId>metrics-ehcache</artifactId>
        <version>${codahale-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>com.codahale.metrics</groupId>
        <artifactId>metrics-graphite</artifactId>
    </dependency>
    <dependency>
        <groupId>com.codahale.metrics</groupId>
        <artifactId>metrics-jvm</artifactId>
        <version>${codahale-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>com.codahale.metrics</groupId>
        <artifactId>metrics-servlet</artifactId>
        <version>${codahale-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>com.codahale.metrics</groupId>
        <artifactId>metrics-servlets</artifactId>
        <exclusions>
            <exclusion>
                <groupId>com.codahale.metrics</groupId>
                <artifactId>metrics-healthchecks</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-json-org</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-hppc</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-joda</artifactId>
    </dependency>
    <dependency>
        <groupId>com.ryantenney.metrics</groupId>
        <artifactId>metrics-spring</artifactId>
        <version>${metrics-spring.version}</version>
    </dependency>
    <dependency>
        <groupId>com.zaxxer</groupId>
        <artifactId>HikariCP</artifactId>
        <version>${HikariCP.version}</version>
        <exclusions>
            <exclusion>
                <groupId>com.sun</groupId>
                <artifactId>tools</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <!-- The HikariCP Java Agent is disabled by default, as it is experimental
    <dependency>
        <groupId>com.zaxxer</groupId>
        <artifactId>HikariCP-agent</artifactId>
        <version>1.3.0</version>
    </dependency>
    -->
    <dependency>
        <groupId>commons-lang</groupId>
        <artifactId>commons-lang</artifactId>
        <version>${commons-lang.version}</version>
    </dependency>
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>${commons-io.version}</version>
    </dependency>
    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>${javax.inject.version}</version>
    </dependency>
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
    </dependency>
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time-hibernate</artifactId>
        <version>${joda-time-hibernate.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.geronimo.javamail</groupId>
        <artifactId>geronimo-javamail_1.4_mail</artifactId>
        <version>${geronimo-javamail_1.4_mail.version}</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>${hibernate-entitymanager.version}</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <version>${hibernate-entitymanager.version}</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.jadira.usertype</groupId>
        <artifactId>usertype.core</artifactId>
        <version>${usertype.core.version}</version>
    </dependency>
    <dependency>
        <groupId>org.liquibase</groupId>
        <artifactId>liquibase-core</artifactId>
    </dependency>
    <dependency>
        <groupId>org.liquibase.ext</groupId>
        <artifactId>liquibase-hibernate4</artifactId>
        <version>3.3</version>
        <exclusions>
            <exclusion>
                <groupId>org.hibernate.javax.persistence</groupId>
                <artifactId>hibernate-jpa-2.0-api</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-actuator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-autoconfigure</artifactId>
        <version>${spring-boot.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-loader-tools</artifactId>
        <version>${spring-boot.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-logging</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-aop</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springsource.loaded</groupId>
        <artifactId>springloaded</artifactId>
        <version>${springloaded.version}</version>
        <scope>provided</scope>
    </dependency>       

    <!-- Database dependencies-->
    <dependency>
        <groupId>org.postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <version>9.3-1100-jdbc41</version>
    </dependency>


    <!-- Test dependencies -->
    <dependency>
        <groupId>com.jayway.awaitility</groupId>
        <artifactId>awaitility</artifactId>
        <version>${awaitility.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.jayway.jsonpath</groupId>
        <artifactId>json-path</artifactId>
        <version>${json-path.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.assertj</groupId>
        <artifactId>assertj-core</artifactId>
        <version>${assertj-core.version}</version>
        <scope>test</scope>
    </dependency>
</dependencies>
<build>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
            <includes>
                <include>**/*</include>
            </includes>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-enforcer-plugin</artifactId>
            <version>${maven-enforcer-plugin.version}</version>
            <executions>
                <execution>
                    <id>enforce-versions</id>
                    <goals>
                        <goal>enforce</goal>
                    </goals>
                    <configuration>
                        <rules>
                            <requireMavenVersion>
                                <message>You are running an older version of Maven. JHipster requires at least Maven 3.0</message>
                                <version>[3.0.0,)</version>
                            </requireMavenVersion>
                            <requireJavaVersion>
                                <message>You are running an older version of Java. JHipster requires at least JDK 1.7</message>
                                <version>[1.7.0,)</version>
                            </requireJavaVersion>
                        </rules>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <argLine>-XX:MaxPermSize=128m -Xmx256m</argLine>
                <forkCount>1</forkCount>
                <reuseForks>false</reuseForks>
                <!-- Force alphabetical order to have a reproducible build -->
                <runOrder>alphabetical</runOrder>
                <classpathDependencyExcludes>
                    <classpathDependencyExclude>org.springsource.loaded:springloaded</classpathDependencyExclude>
                </classpathDependencyExcludes>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <configuration>
                <packagingExcludes>WEB-INF/lib/tomcat-*.jar</packagingExcludes>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-eclipse-plugin</artifactId>
            <configuration>
                <downloadSources>true</downloadSources>
                <downloadJavadocs>true</downloadJavadocs>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>sonar-maven-plugin</artifactId>
            <version>${sonar-maven-plugin.version}</version>
        </plugin>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <arguments>
                    <argument>--spring.profiles.active=dev</argument>
                </arguments>
            </configuration>
        </plugin>
    </plugins>
</build>

​

NPM

看看NPM在最初的JHipster生成阶段所做出的反应，我实际上也看到了这些日志中的错误，如下所述。有人有这方面的背景吗？

2400 verbose etag pad-stdio from cache
2401 error Error: No compatible version found: findup-sync@'^0.1.2'
2401 error Valid install targets:
2401 error ["0.1.0","0.1.1","0.1.2","0.1.3"]
2401 error     at installTargetsError (C:\ProgramFiles\nodejs\node_modules\npm\lib\cache.js:719:10)
2401 error     at C:\Program Files\nodejs\node_modules\npm\lib\cache.js:638:10
2401 error     at saved (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\get.js:142:7)

即使有了这个错误，我也能够用直接的npm install findup-sync@0.1.2手动地包含fin达普同步，但这并没有解决我的错误与Tomcat实例。

返回Maven/POM

这肯定是与com.sun:tools.jar有关的其他事情.通过我的POM，但是如果有人曾经在JHipster经历过，请给我一个呼喊。谢谢你的帮助!

Answer 1

这里有三个问题：

1. 我的Eclipse指向的是JRE，而不是jar(包含正确的com.sun:tools jar)。然而，为了进行正确的更新，它并不像更新我的JAVA_HOME变量并继续前进那样简单.见下面的步骤1-5。
   • 描述这一点的StackOverflow文章在这里注意到：https://stackoverflow.com/questions/5756299/maven-3-artifact-problem/5756446#5756446

1. 我的应用程序-dev.yml属性文件没有指向生成的数据库，只是在生成连接池时遇到了问题，而不是抛出一个描述性错误，取而代之的是删除。参见下面的步骤8。
2. 我的项目是一个spring引导项目，因此无法在Eclipse中的通用Tomcat上执行。参见下面的步骤9。

决议摘要

1. 将%JAVA_HOME%更改为JDK
2. 用以下行更新eclipse.ini：
   • -vm
   • C:\Program Files\Java\jdk1.7.0_25\bin\

1. 更新Eclipse首选项：‘窗口>首选项> Java >已安装的JREs’>删除并添加新的JDK
2. 更新项目属性：'Project > properties > Java Build Path‘>删除旧的JRE并添加新的JDK
3. 关闭所有打开的命令提示和活动服务器(这可能正在缓存%JAVA_HOME% .我花了一个小时才意识到这一点)
4. mvn清洁包装
5. 告诉SureFire在POM构建过程中跳过
6. 确保更新应用程序-dev.yml文件以指向真正的数据库(在Eclipse中执行只显示内存丢失的例外，但是运行mvn spring-boot:run会给您提供更好的错误报告)。
7. 如果它是一个spring引导应用程序，那么将它作为一个spring引导应用程序运行，而不是直接在Eclipse中的Tomcat上运行。我还没有研究这是为什么会如此痛苦，但我会回头再讲。如果您知道，请在评论中添加详细信息。

< skip>true< /skip> ...minus额外空间

首先在Eclipse中运行东西而不是在Maven中运行的问题--错误日志记录非常具有误导性！